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Green circuit board with 40-pin header and two CAN connectors

WaveShare

WaveShare 2-Channel Isolated CAN FD Expansion HAT for Raspberry Pi

SKU CH-4ZGP-G9JZ5

Adds two isolated CAN FD channels with MCP2518FD controller and MCP2562FD transceiver, 500 W surge protection, 5 kV isolation, jumper-selectable 3.3 V or 5 V and 120 Ω termination

  • CPU TypeOther
  • Two isolated CAN channels expand vehicle and industrial connectivity
  • Standard 40-pin GPIO header fits every Raspberry Pi and Jetson Nano board
  • Supports CAN 2.0 and CAN FD for higher data throughput
  • Onboard 500 W lightning surge, ESD and short-circuit protection with 5 kV isolation
  • Jumper-selectable 3.3 V or 5 V operation and 120 Ω termination resistor

Dual-Channel CAN FD HAT for Raspberry Pi

This expansion HAT adds two isolated CAN channels to any Raspberry Pi board with a 40PIN GPIO header and also works with Jetson Nano. It supports both CAN2.0 and CAN FD protocols for higher data throughput in automotive or industrial networks. The onboard MCP2518FD controller and MCP2562FD transceiver handle protocol processing and bus driving.

Build Integration and Voltage Flexibility

The HAT plugs directly onto the 40PIN GPIO header, requiring no extra cables or adapters for the host board. Jumpers let you select 3.3V or 5V operating voltage and enable or disable the 120 termination resistor for each channel. Electrical isolation up to 5KV separates the CAN bus from the host, reducing ground-loop issues in noisy environments.

Protection and Power Characteristics

Onboard protection includes a 500W lightning-surge TVS diode, ESD guarding and short-circuit safeguards on each CAN line. The isolation barrier and SM24CANB TVS devices suppress transient peaks without active cooling. Normal operation draws minimal current from the Pi supply, leaving headroom for other HATs or peripherals on the same 40PIN header.

Highlights

  • Two isolated CAN channels expand vehicle and industrial connectivity
  • Standard 40-pin GPIO header fits every Raspberry Pi and Jetson Nano board
  • Supports CAN 2.0 and CAN FD for higher data throughput
  • Onboard 500 W lightning surge, ESD and short-circuit protection with 5 kV isolation
  • Jumper-selectable 3.3 V or 5 V operation and 120 Ω termination resistor

Specifications

CPU TypeOther

Questions about this item

How many CAN channels can the HAT handle at once?

The board provides two isolated CAN channels driven by MCP2518FD controllers and MCP2562FD transceivers.

What protection does the HAT include for continuous operation?

Onboard circuits deliver 500 W lightning surge protection, ESD guarding, short-circuit protection and 5 kV electrical isolation.

Which host boards does the 40-pin header fit?

The standard 40-pin GPIO extension header fits all Raspberry Pi series boards and Jetson Nano.

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